Thursday, December 29, 2011

Dell UltraSharp U2711 review

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The new Dell UltraSharp U2711’s stand is not plastic, it has a metal mechanical system so it is an upgrade from earlier such Dell monitors. What stands out is the stand’s large base (in comparison to smaller monitors). The stand offers cable management, and adjustment of the display – height, tilt and swivel are the adjustments possible. Perhaps due to the size of the monitor, Dell has not offered the “pivot” facility with its stand, which otherwise is a staple feature on UltraSharp monitors.


That indeed is a pity, turning the screen around by 90 degrees vertically to function in “Portrait-mode” at a resolution of 1440 pixels wide and 2560 pixels would have been quite a treat. Still, it does support VESA mounting, so you can use a wall-mount to use the Dell UltraSharp U2711 monitor in just the way you want it, whether oriented horizontally or vertically.


There is a memory card reader built into the left side of the Dell UltraSharp U2711, along with two more USB ports to let you easily plug USB devices into the system. A number of brands are moving to offer an LED backlight on their laptop/desktop monitors, but Dell has stuck to the tried and tested CCFL for this 27 inch giant of a monitor. Dell claims a viewing angle of 178 degrees on the U2711, both horizontally and vertically, so you can view the display just fine without colour shifts from almost any angle.


Even when placed beside a CRT monitor, you’d be hard-pressed to find colour-reproduction issues, since it uses one of the best panels currently (an LG H-IPS 10-bit panel, model number LM270WQ1). Colour depth is good, with Dell claiming the Dell UltraSharp U2711 can display 1.07 billion colours (as against the usual 16.7 million colours), output 30-bit colour (compared to the usual 24-bit colour) has 12-bit colour processing (most normal monitors are 6-bit) and a colour gamut of 110 percent (on the CIE1976 standard most monitors achieve just 72 percent). In short, this means you would be able to see every colour as the author intended it to be seen, making it a good choice for photographers, movie buffs and print/web graphics content creators.


Typical power consumption is rated at 113W while active and 2W during standby/sleep, these numbers exclude any additional power drawn by speakers/USB devices attached to the LCD monitor. Compared to the 5-year warranty for high-end monitors earlier, Dell has reduced it now to a 3-year warranty. But even this warranty continues to carry the privileges you’d expect after having paid for such a high-end monitor.


The Dell UltraSharp U2711 LCD monitor claims a dynamic contrast ratio (DCR) of 80,000:1 which is fine for movies and games. However, we disable DCR to measure its true contrast ratio, claimed to be 1000:1 which was then measured by our Chroma meter to be 972:1 which is really good. We measured brightness of 226 cd/m2 and a deep black level of 0.23 cd/m2 which again put this monitor in distinguished company.


For once, we found our calibration equipment behind the curve and this premium monitor which is pre-calibrated by Dell at the factory for the sRGB and Adobe RGB colour spaces, actually performed better before calibration than after it. We run a battery like dell Latitude CPi battery, dell Inspiron 8200 battery, dell Inspiron 8000 battery, dell Inspiron 8100 battery, dell Inspiron 4000 battery, dell Inspiron 4100 battery, dell Inspiron 2500 battery, dell Latitude CPX battery, dell Latitude C600 battery, dell Latitude C610 battery of tests including those from Lavalys Everest, PixPerAn, Lagom, and DisplayMate, measuring them with a Chroma meter. It scored well as expected, for more details see the “Performance” tab of this review. In brief, the colour accuracy, brightness, and contrast were excellent as the numbers above will tell you.


Our subjective tests consisted of browsing and productivity apps, viewing photos, movies and playing games. The colours were vibrant and felt “true”, screen was sharp and the colour consistency was even across the screen (this is better than most normal CCFL-backlit monitors). Importantly for movie watchers, the depth of the black was very good – the black levels noted above are superb numbers.


On a related note, we saw no backlight bleeding which is good. The horizontal and vertical viewing angles were as expected for an IPS-panel monitor, the colours were close to their original from every angle in front of the screen. Thus you can even lie down on the floor and watch a movie just as comfortably with colours faithful to their original, just as they they’d look when you’re seated on a chair.


There were no dead/stuck/coloured pixels on the unit that came to us for review, as confirmed on 5 uni-colour screens (completely dark, white and the 3 primary colours). Input lag usually cripples many displays that use an IPS panel. Though the U2711 is not immune, it still aced this one, with no perceptible mouse lag even in fast-paced FPS games (they remain very playable), or out of sync audio in movies.

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